Class InformationNumber: 446/433Name:Amusement devices: toys > Rolling or tumbling (e.g., wheeled) > Endless track vehicleDescription: Device including either a chain of pivoted elements, or a belt, wherein the belt or chain is in the form of a closed loop which is carried by a vehicle and contacts a supporting surface, and which is caused to revolve to propel the vehicle forward, or structure which simulates such a chain or belt.